Round Track Hole pics
I believe the request for pics was for the round holes.
Seen a pic of a Doo in the latest issue of SnoGoer that had the round holes. They said the reason for "portiing" this 3rd window was for more snow onto the heat exchanger?
I believe the request for pics was for the round holes.
Seen a pic of a Doo in the latest issue of SnoGoer that had the round holes. They said the reason for "portiing" this 3rd window was for more snow onto the heat exchanger?
garserio
Expert
- Joined
- Nov 30, 2004
- Messages
- 309
- Age
- 49
- Location
- Fairport, NY
- Country
- USA
- Snowmobile
- 2014 SR Viper
2001 AC Z370
2006 AC F120
I cut out my track windows today. It took a little over an hour with a sharp utility knife. I used the kind with the snap-off blades and snapped off a section every 4-5 windows. The fiberglass cords definitely dull the blade...
The pic below shows the weight of the 32 pieces that are removed from a 121" track: 6.3oz. Probably insignificant, but that's the data for those who need to know...
The pic below shows the weight of the 32 pieces that are removed from a 121" track: 6.3oz. Probably insignificant, but that's the data for those who need to know...
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This is by far the best thread I've found regarding the subject. Here's some additional info I pulled up in my research.
Here's what Tracks USA has to say from their FAQ's:
What about a "3rd-window-closed" snowmobile track?
"The 3rd-window-closed design was initially introduced about 1997 in a 1.250 track for snowcross racing as a method to reduce weight and retain snow in the skid frame for lubrication. A 121" track of the 3rd-window-closed design weighs about 2 pounds less than a fully clipped track. I have never seen a 3rd-window-closed snowmobile track show any signs of wear in the unclipped rubber area.
Observing the OEMs, all four manufacturers are now using 3rd-window-closed designs as original equipment on most models. A few fully clipped snowmobile tracks can be found on performance snowmobile models able to achieve relatively high top speeds. I am sure their testing has shown that in most conditions, the 3rd-window-closed design performs the best, is lighter in weight and costs less to produce."
I disagree with their statement about never seeing any wear in the unclipped area. Check out the pic of the RipSaw on my Nytro.
Here's some additional info.
http://www.camoplast.com/tracks/snowmobile_tracks/clipping.php
I'm planning to cut my track windows.
Here's what Tracks USA has to say from their FAQ's:
What about a "3rd-window-closed" snowmobile track?
"The 3rd-window-closed design was initially introduced about 1997 in a 1.250 track for snowcross racing as a method to reduce weight and retain snow in the skid frame for lubrication. A 121" track of the 3rd-window-closed design weighs about 2 pounds less than a fully clipped track. I have never seen a 3rd-window-closed snowmobile track show any signs of wear in the unclipped rubber area.
Observing the OEMs, all four manufacturers are now using 3rd-window-closed designs as original equipment on most models. A few fully clipped snowmobile tracks can be found on performance snowmobile models able to achieve relatively high top speeds. I am sure their testing has shown that in most conditions, the 3rd-window-closed design performs the best, is lighter in weight and costs less to produce."
I disagree with their statement about never seeing any wear in the unclipped area. Check out the pic of the RipSaw on my Nytro.
Here's some additional info.
http://www.camoplast.com/tracks/snowmobile_tracks/clipping.php
I'm planning to cut my track windows.
